At the beginning of the school year, you administer a preliminary test of
intellectual capacity (assume validity) to a class of students. Then, you randomly
assign the students to two groups: "gifted" and "non-gifted". You tell the teacher,
and not the students themselves, which students are "gifted" and which are not.
What would you expect in terms of performance on a follow-up test at the end of
the school year? Select the best answer.
